/// Access the placement of a node in the chain of placements for this branch
PlacedVolume GlobalAlignment::nodePlacement(int level) const {
CheckHandle verify_handle(*this);
PlacedVolume pv = PlacedVolume(ptr()->GetNode(level));
if ( pv.isValid() ) return pv;
throw runtime_error("DD4hep: The object chain of "+string(placement().name())+
" is too short. [Invalid index]");
}
/// Given a detector element, access it's sensitive detector (if the sub-detector is sensitive!)
SensitiveDetector LCDDHelper::sensitiveDetector(DetElement detector) const {
for(DetElement par = detector; par.isValid(); par = par.parent()) {
if ( par.ptr() != ptr()->world().ptr() ) {
PlacedVolume pv = par.placement();
if ( pv.isValid() ) {
const PlacedVolume::VolIDs& ids = pv.volIDs();
for(PlacedVolume::VolIDs::const_iterator i=ids.begin(); i!=ids.end();++i) {
if ( (*i).first == "system" ) {
return sensitiveDetector(par.name());
}
}
}
}
}
return SensitiveDetector(0);
}
